A5064655719- Geology and Paleoclimatology Research
- Pleistocene-Era Hominins and Archaeology
- Archaeology and ancient environmental studies
- Geological formations and processes
- Climate change and permafrost
- Isotope Analysis in Ecology
- Lichen and fungal ecology
- Tree-ring climate responses
- Evolution and Paleontology Studies
- Marine Biology and Ecology Research
- Mycorrhizal Fungi and Plant Interactions
- Environmental and Cultural Studies in Latin America and Beyond
- Coastal wetland ecosystem dynamics
- Cryospheric studies and observations
- Peatlands and Wetlands Ecology
- Paleontology and Stratigraphy of Fossils
- Botany, Ecology, and Taxonomy Studies
- Geological and Geophysical Studies Worldwide
- Plant Taxonomy and Phylogenetics
- Indigenous Studies and Ecology
- Forest Ecology and Biodiversity Studies
- Hydrology and Sediment Transport Processes
- Ecology and biodiversity studies
- Marine animal studies overview
- Polar Research and Ecology
Universidad Nacional del Sur
2012-2025
Consejo Nacional de Investigaciones Científicas y Técnicas
2011-2025
National University of Patagonia San Juan Bosco
2014
Centro Científico Tecnológico - Tucumán
2009
We reconstruct the palaeogeographical evolution of continental shelf in Patagonia for period spanning Last Glacial Maximum (approximately 24 000 calibrated years BP) to Middle Holocene using a global sea level rise curve this and GLOBAL MAPPER 10 software (http://www.globalmapper.com). Our model provides new information future palaeoenvironmental palaeoclimatic reconstructions. expect will be assistance studies designed examine patterns faunal plant population expansion, dispersal, migration...
A ca. 1400-yr record from a raised bog in Isla Grande, Tierra del Fuego, Argentina, registers climate fluctuations, including Medieval Warm Period, although evidence for the ‘Little Ice Age’ is less clear. Changes temperature and/or precipitation were inferred plant macrofossils, pollen, fungal spores, testate amebae, and peat humification. The chronology was established using 14 C wiggle-matching technique that provides improved age control at least part of compared to other sites. These...
The climate in southern Patagonia is heavily influenced by the Southern Westerly Winds (SWW). Therefore, reconstructions from this region are valuable for our understanding of temporal dynamics atmospheric circulation Hemisphere. In study a sedimentary record shallow lake Laguna Amalia – located semiarid Fuegian steppe Tierra del Fuego (53°S) was used to how hydroclimate has changed over last ~7100 years. Our interpretations rely on combination pollen, diatoms, total organic carbon,...
Palynological studies have been performed in order to increase knowledge of relations between present vegetation and fungal biota. The analysis modern analogues will help improve the palaeoenvironmental reconstructions fossil sequences from Isla Grande de Tierra del Fuego. A total 24 taxa found, described illustrated. Surface samples were collected different communities developed on island: steppe, Nothofagus forest–steppe ecotone forest. steppe is characterised by a predominance Poaceae...
Abstract Pollen analysis from a sedimentary section in the valley of Sauce Grande River (southwestern Buenos Aires Province) and peat core Andorra Valley (southern Tierra del Fuego) provides evidence for apparent large‐scale synchroneity major past vegetational changes inferred climatic trends during late Pleistocene Holocene this region. Climate before 10,000 years B.P. was relatively cold dry, both southwestern Province southern Fuego. A amelioration to wanner wetter conditions early is...
Palynofacies analysis of surface sediments from the Beagle Channel, Tierra del Fuego, Argentina, was carried out to establish modern analogues for comparison with other Holocene marine records in southern Isla Grande de Fuego. Our results show dominance highly degraded translucent phytoclasts, associated amorphous organic matter (AOM) and palynomorphs, while opaque phytoclasts are poorly represented. The constituents indicate proximity continental source area environments, distances and/or...
The coast-line evolution and vegetation from the Last Glacial Maximum (LGM, ca. 25 ka cal AP) until middle Holocene are reconstructed a digital terrain model postglacial sea level curve pollen analysis of Donatia-Astelia cushion bog located in Punta Moat (Moat-2; 54°58’50’’S, 66°44’10’’W; 40 m s.n.m.), east Beagle Channel. plant communities at eastern mouth Channel is broadly line with regional pattern areas devoid ice south Tierra del Fuego. shows...
This work is an updated review of the knowledge on evolution and development palaeoenvironments during Holocene marine ingression posterior regressive event in Tierra del Fuego. During beginning transgression, ca. 8000 cal yr BP, vegetation southern coastal areas along Beagle Channel was mainly arboreal with dominance Nothofagus forest scarcity shrub herbaceous communities, while northeastern Atlantic coast, treeless steppe replaced by a relatively open forest. The Early–Middle aquatic...